<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <h1>{{info}}</h1>
</div>
<!--引入vue.js框架文件-->
<script src="js/vue.min.js"></script>
<script>
  //创建对象
  let v =new Vue({//设置Vue框架的管理范围
    el:"body>div",
    data:{
      info:"Hello Vue"
    }
  })
setTimeout(function (){
  v.info = "值改变了！";
},3000)
</script>

</body>
</html>